TOP256YN
Product Overview
- Category: Integrated Circuit (IC)
- Use: Power Management
- Characteristics: High Efficiency, Low Standby Power, Wide Input Voltage Range
- Package: TO-220-7L
- Essence: Offline Switcher
- Packaging/Quantity: Tube/50 pieces
Specifications
- Input Voltage Range: 85VAC to 265VAC
- Output Power: Up to 94W
- Frequency Range: 50Hz to 60Hz
- Operating Temperature Range: -40°C to +150°C
- Efficiency: Up to 88%
- Standby Power: Less than 100mW
Detailed Pin Configuration
- Drain
- Source
- Feedback
- Ground
- VCC
- Control
- Sense
Functional Features
- Primary-Side Regulation (PSR) Control
- Auto-restart Protection
- Overload and Short-Circuit Protection
- Line Under-Voltage Lockout (UVLO)
- Thermal Shutdown Protection
- Frequency Jittering for EMI Reduction
Advantages
- High Efficiency leads to reduced power consumption
- Wide Input Voltage Range allows for universal compatibility
- Compact TO-220-7L package enables easy integration
- Auto-restart Protection ensures continuous operation in case of faults
- Frequency Jittering reduces electromagnetic interference (EMI)
Disadvantages
- Limited output power compared to higher-rated ICs
- Relatively high operating temperature range may require additional cooling measures
Working Principles
The TOP256YN is an offline switcher IC that utilizes primary-side regulation (PSR) control to provide efficient power management. It operates by converting the input AC voltage into a high-frequency square wave, which is then rectified and filtered to obtain the desired DC output voltage. The PSR control eliminates the need for an optocoupler and secondary-side feedback circuitry, simplifying the design and reducing costs.
Detailed Application Field Plans
The TOP256YN is commonly used in various applications requiring power management, such as:
- LED Lighting Systems
- Consumer Electronics
- Industrial Equipment
- Home Appliances
- Power Adapters
Detailed and Complete Alternative Models
- TOP257YN
- TOP258YN
- TOP259YN
- LNK364GN
- LNK362GN
These alternative models offer similar functionality and can be used as substitutes for the TOP256YN in different applications.
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10個與TOP256YN在技術方案中應用相關的常見問題與解答
Sure! Here are 10 common questions and answers related to the application of TOP256YN in technical solutions:
Q: What is TOP256YN? A: TOP256YN is a high-performance offline switcher IC (integrated circuit) designed for power supply applications.
Q: What are the typical applications of TOP256YN? A: TOP256YN is commonly used in various power supply designs, including adapters, chargers, LED lighting, industrial controls, and consumer electronics.
Q: What is the input voltage range supported by TOP256YN? A: The input voltage range of TOP256YN is typically between 85V AC and 265V AC, making it suitable for universal input applications.
Q: What is the maximum output power that can be achieved with TOP256YN? A: The maximum output power depends on the specific design and external components used. However, TOP256YN can handle power levels up to several hundred watts.
Q: Does TOP256YN require an external MOSFET? A: Yes, TOP256YN requires an external MOSFET to control the switching operation and handle the power conversion.
Q: Can TOP256YN operate in continuous or discontinuous mode? A: TOP256YN can operate in both continuous conduction mode (CCM) and discontinuous conduction mode (DCM), depending on the load conditions.
Q: What are the key features of TOP256YN? A: Some key features of TOP256YN include primary-side regulation (PSR), frequency jittering for EMI reduction, cycle-by-cycle current limit, and thermal shutdown protection.
Q: How does TOP256YN achieve primary-side regulation? A: TOP256YN uses primary-side feedback to regulate the output voltage, eliminating the need for an optocoupler or secondary-side feedback circuitry.
Q: Is TOP256YN suitable for high-efficiency designs? A: Yes, TOP256YN is designed for high-efficiency power supply applications and offers excellent efficiency across a wide load range.
Q: Are there any application notes or reference designs available for TOP256YN? A: Yes, the manufacturer of TOP256YN provides application notes, reference designs, and evaluation boards to assist in the design and implementation of power supplies using this IC.
Please note that the answers provided here are general and may vary depending on specific design requirements and application scenarios. It's always recommended to refer to the datasheet and application notes provided by the manufacturer for detailed information.